Precision control method for stay rope manufacturing

A precision control and cable technology, applied in bridge parts, bridge materials, bridges, etc., can solve the problems of inability to apply cable precision control, difficult to find marking points, etc., and achieve the effect of improving manufacturing accuracy, convenient use and high measurement accuracy

Inactive Publication Date: 2015-07-01
SHANGHAI PUJIANG CABLE +1
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AI Technical Summary

Problems solved by technology

However, this method has not been applied to the precision control of the cable because of the following reasons: (1) The steel wires of the suspension cables are exposed, and it is easy to find standard steel wires and marking points, while the steel wires of the cable are wrapped in the sheath, It is difficult to find the marking point; (2) All the wires of the suspension cable are straight and have the same length, but the wires of the stay cable are twisted, and only the center wire is straight, so only the length of the center wire is the same as the length of the cable, and The central wire is just the hardest to see
It can be seen that there are relatively large defects in the length measurement of the cable

Method used

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  • Precision control method for stay rope manufacturing
  • Precision control method for stay rope manufacturing

Examples

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Embodiment 1

[0018] A precision control method for cable production, which is implemented sequentially according to the following steps:

[0019] a. make the standard length steel wire 11 by the standard length of the cable steel wire, and mark the reference point and the cutting point on the standard steel wire 11, figure 2 Middle x and y are respectively the front end reference point and the rear end reference point on the standard steel wire 11, figure 2 Middle x' and y' are respectively the front end cut-off point and the rear end cut-off point on the standard steel wire 11;

[0020] b. Weave the standard steel wire 11 into the cable strand 10, that is, continue to attach the strand steel wire 12 outside the standard steel wire 11, such as figure 1 As shown, the standard steel wire 1 is used as the central steel wire of the cable strand 10, that is, the standard steel wire 11 is located at the center of the section of other cable strand steel wires 12;

[0021] c. Twist the cable s...

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Abstract

The invention relates to the field of production equipment of a stay rope for a cable-stayed bridge, in particular to a precision control method for stay rope manufacturing. The precision control method for stay rope manufacturing is characterized by being performed by the following steps in sequence: (a) a steel wire (11) with a standard length is manufactured; (b) the standard steel wire (11) is woven into stay rope parts (10); (c) the twisting is performed; (d) the cutting is performed; and (e) the stay rope is cut off again after a cutting position is calculated. The precision control method for stay rope manufacturing is convenient to use and high in measurement precision.

Description

technical field [0001] The invention relates to the field of production equipment for cables of cable-stayed bridges, in particular to a precision control method for the production of cables. Background technique [0002] Cable-stayed bridge is one of the main forms of modern bridge structure, and it is the most widely used spanning bridge at present. The cable is the main component of the cable-stayed bridge, and it is the force-bearing part of the cable-stayed bridge to carry the load. The manufacturing accuracy of the cable determines the difficulty of installation and construction of the cable, and the precision requirements of the cable determine the force balance of the cable. In China, tools such as tape measure were used to measure the length of the cable at first in China. The precision of the cable made by this method is low. At present, methods such as steel tape measurement and laser length measurement are commonly used. Because the length of the cable is affe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/16
CPCE01D19/16E01D2101/30
Inventor 顾庆华张海良朱金林
Owner SHANGHAI PUJIANG CABLE
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